Seudónimo Seudónimo
  • 03-03-2016
  • Mathematics
contestada



If y is proportional to x and y = -15 when x = -20, what is the value of x when y = 12?

Respuesta :

Alex66 Alex66
  • 03-03-2016
y= k·x
if y= -15 and x= -20
⇒ -15 = k·(-20)
⇒ k = -15/-20 
⇒ k = 3/4

What is the value of x when y=12 ?

x= ?
k= 3/4
y = 12

y = kx
⇒ x = y/k
⇒ x = 12/(3/4)
⇒ x = 12· (4/3)
⇒ x = 16

Answer Link

Otras preguntas

It scraped on my raw nerves like sandpaper figurative language
5p + 10= 2p + 1P + 40
kay’s on is looking at two buildings, building A and building B at an angle of elevation of 73°. Building A is 30 feet away, and building B is 35 feet away. Whi
Multiplying a number by 9 and subtracting 6 is 16 less than twice the number. Find the number.
Q28. In the given figure, find the value of x ​
a poem about canada with 8 lines
What are the domain and range of the step function below? a) domain= {all real numbers}, range = {all real numbers} b) domain= {all real numbers}, range= {…-4
write essay (250 60 300) The moment you realise that you have made a mistake​
what is a gene mutation
Which of the following is an observation that supports natural selection? Some organisms can pass down some traits that they have acquired throughout their li